Loaning friends money

[RandomFluke]

I loan close friends money, and they've always repaid it. My general rule is if I believe our positions were reversed and they would loan me the money, then i'll lend it to them.

However, I loaned my brother $3200 a little over 2 years ago and am starting to think I'm not going to get it back. This has really been bothering me, not because he owes me money, but because he is screening my calls now and I basically have gone from a good relationship, to him avoiding me because he feel embarassed that he has owed me money for so long... Now I wish I'd never loaned him the money. Also I heard from a relative my brother went on a 2 week vacation out of the country recently rather then paying me back... Honestly I don't know what to do, because I know if I come down on him he'll probably never talk to me again.